Google’s US antitrust case over its internet advertising empire has come to a conclusion

The US Justice Department will submit its final argument on Monday that Google illegally dominates Internet advertising technology, aiming for a second antitrust victory against the corporation.

The closing arguments in Alexandria, Virginia, conclude a 15-day trial in September in which prosecutors sought to demonstrate that Google monopolized the markets for publishers’ ad servers and advertisers’ ad networks, as well as attempting to dominate the market for ad exchanges that connect buyers and sellers.

Google said that prosecutors are stretching US antitrust law to force it to accept competitors’ services, and that the prosecution is based on occurrences from years ago, when Google was still developing and refining its products.

Publishers testified at trial that they could not stop using Google, even when it launched features they did not like, because there was no other way to access the huge advertising demand within Google’s ad network.